I think Belle from the Disney princesses would be the most interesting. She is intelligent and curious, much like Hermione in the Harry Potter world. In this fanfiction, she would be eager to explore the wizarding world, learn about magic, and share her love for books with the Hogwarts students. She could also use her kindness and ability to see the good in others to bring out the best in some of the more troubled characters in the Harry Potter universe, like Draco Malfoy perhaps.
Hermione would be really interesting. In a fanfiction like this, she would be fascinated by the Disney princesses. She could study their different forms of magic and their unique cultures. Her in - depth knowledge of magic would help bridge the gap between the two very different fictional universes. Also, she could learn a lot from the princesses about leadership and courage in different ways compared to what she has experienced in the wizarding world.
Snow White could be very interesting. In a 'Harry Potter Disney Princess Harem Fanfiction', her pure heart and kindness would stand out. She could befriend the house - elves at Hogwarts and teach the students about the importance of treating all beings with respect. Her ability to charm animals could also be used in the wizarding world in ways not thought of before. And her experience with the Evil Queen would give her an understanding of facing great evil, which she could share with Harry and his friends when they encounter dark wizards.
One possible plot could be that a powerful wizard from the Harry Potter world accidentally creates a portal that brings together various Disney princesses into the wizarding world. Harry Potter and his friends are initially shocked but then have to work with the princesses to face a new dark threat that emerges due to this strange union. The princesses' unique skills and the magic of the wizarding world combine in unexpected ways to fight the enemy.
Definitely Harry Potter and Simba. Just think about it, Harry, who has faced so many challenges in the wizarding world, could share his experiences of growing up and facing difficulties with Simba, who also had to overcome many hardships to become king. It would be an interesting combination of two strong - willed characters.
Harry Potter himself would be very interesting. Combining his wizarding skills with Kryptonian powers would make him an extremely powerful character. He could be the bridge between the two worlds and use his new powers to protect both the wizarding world and the world of Kryptonians on Earth.
The crossover where the Hogwarts Express arrives at a Disney - like station is really interesting. It's like two different magical worlds colliding. Another interesting one is when the Harry Potter characters participate in a Disney - style ball. It gives a whole new look to the formal events in the Harry Potter world. And the idea of Disney villains interfering in the Harry Potter plot can also make for some really engaging fanfiction.
Hermione would be really interesting. She could bring her intelligence and knowledge of magic to the iCarly crew. Imagine her helping Freddie with his tech projects using magic, or teaching Carly and Sam some basic spells. It would be a great contrast between the magical and Muggle worlds.
Harry and Elsa would be a very interesting pairing. Harry, with his experience in facing dark magic, could offer Elsa a new perspective on her powers which she has always seen as a curse. And Elsa, with her ice powers, could show Harry a different kind of magic that he's not used to in the wizarding world. Another interesting pairing would be Ron and Kristoff. They both have a simple - minded charm and could get into all sorts of funny situations together, like getting lost in the Forbidden Forest or on the mountains in Arendelle. Also, Hermione and Anna would be great. Hermione's intelligence and Anna's determination would make them a formidable duo as they try to solve problems in both their worlds.
Snape and Madarao would be an unexpected but fascinating pairing. Snape's brooding and complex personality could interact in an interesting way with Madarao's more straightforward and loyal nature. Snape could perhaps study the unique yokai magic associated with Madarao, and Madarao could be both amused and intrigued by Snape's potions and spells.
Definitely Harry Potter and Rias. Rias is used to leading and being in control, but Harry has his own strong sense of justice and leadership. Their interactions could be full of power plays and mutual respect as they try to figure out how to work together.
It could be Aquaman. He is so different from the wizards in the Harry Potter universe. His fish - like abilities and his role as a king would make for some great interactions with the Hogwarts students and professors. He could teach them about the ocean and its secrets, while also being amazed by the magic of wands and potions.
Percy would be really interesting. His ability to control water and his laid - back yet brave personality would contrast well with the more formal wizarding world. He could make some really funny and unexpected interactions with the Hogwarts students and teachers.